1578045071622 has 8 divisors (see below), whose sum is σ = 3156090143256. Its totient is φ = 526015023872.

The previous prime is 1578045071587. The next prime is 1578045071623. The reversal of 1578045071622 is 2261705408751.

It is a sphenic number, since it is the product of 3 distinct primes.

1578045071622 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1578045071623) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 131503755963 + ... + 131503755974.

It is an arithmetic number, because the mean of its divisors is an integer number (394511267907).

Almost surely, 2^{1578045071622} is an apocalyptic number.

1578045071622 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1578045071622 is a wasteful number, since it uses less digits than its factorization.

1578045071622 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 263007511942.

The product of its (nonzero) digits is 940800, while the sum is 48.

The spelling of 1578045071622 in words is "one trillion, five hundred seventy-eight billion, forty-five million, seventy-one thousand, six hundred twenty-two".